Compare Redmi K40 Gaming Edition vs Redmi Note 8 2021 vs Xiaomi Redmi 9T
Connectivity
Ports
USB-C
USB-C 2.0, 3.5mm headphone
USB-C + 3.5mm headphone jack
Wireless Connectivity
WiFi 6, Bluetooth 5.2
IR, WiFi 5, Bluetooth 5.2
NFC, IR blaster, Bluetooth, WiFi
Construction
Battery | Capacity
5065 mAh
4000 mAh (typ)
6000 mAh
Camera | Front
16MP
13 MP, f/2.0, 1/3.1", 1.12µm
8MP, f/2.5
Camera | Rear
48MP main camera 1/2" sensor, f/1.79, AF + 8MP ultra-wide, f/2.2 + 2MP depth sensor, f/2.4 + 2MP macro camera, f/2.4
Camera | Rear | Depth
2 MP, f/2.4
Camera | Rear | Macro
2MP, f/2.4
2 MP, f/2.4
Camera | Rear | Ultra-Wide
8MP, f/2.2
8 MP, f/2.2, 120˚, 1/4.0", 1.12µm
Camera | Rear | Wide
64MP, f/1.65
48 MP, f/1.8, 26mm, 1/2.0", 0.8µm, PDAF
Colors
Black, Sliver, White
Neptune Blue, Moonlight White, Space Black
Carbon Gray, Twilight Blue, Sunrise Orange, Ocean Green
Material
Corning Gorrila Glass 5
Gorilla Glass 5 front and back, plastic frame
Corning️ Gorilla️ Glass 3 front / Unibody polycarbonate back
Speakers
Dual speakers
Super linear speaker
Dual speakers, Hi-Res Audio certification
Dimensions
Size | Depth
8.3 mm
8.35 mm / 0.33"
9.6 mm
Size | Height
161.94 mm
158.3 mm / 6.23"
162.3 mm
Size | Width
76.93 mm
75.3 mm / 2.96"
77.3 mm
Weight
205 g
190 g / 6.7oz
198 g
Display
Aspect Ratio
20:9
19.5:9
Brightness
500 nits
500 nits
400 nits (typ)
Contrast Ratio
5,000,000:1 (typical)
Display Color Depth
10-bit (1.07B)
Display Diagonal
6.67 inch
6.3 inch
6.53 inch
Display Type
OLED
IPS
DotDisplay
Gamut
100% DCI-P3
Pixel Density
409 ppi
Refresh Rate
120 Hz
60 Hz
Resolution
FHD+ 2400x1080
FHD+ 2340×1080
FHD+, (2340×1080)
Function
Audio
Hi-Res Audio certification
Bluetooth Codecs
AAC / LDAC / LHDC
Bluetooth Profiles
A2DP
Chipset
MediaTek 1200
MediaTek Helio G85, 12nm manufacturing process
Qualcomm️ Snapdragon 662
Fast Charging
67W wired turbo charging, 42min to 100%
18W fast charge
18W wired fast charging
GPS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS, A-GPS, GLONASS, GALILEO, BDS
Graphics
9-core Mali
Mali-G52 MP2 GPU
Qualcomm Adreno 610 GPU
HDR
HDR10+
Operating System
MIUI 12.5, Android 11
Android 11, MIUI 12.5
MIUI 12 based on Android 10
Processor
8-core Cortex A78, 6nm
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Qualcomm️ Kryo 260
SIM
Dual nano 5G
2x Nano 4G LTE
Dual SIM
Security
Side-mounted fingerprint sensor
Side-mounted fingerprint sensor + AI Face Unlock
Sensor
Fingerprint, accelerometer, gyro, proximity, compass
Touch Screen
480Hz touch sampling rate
Tuner
FM radio
Video Recording
4K 30fps, FHD 120fps, HD 960fps
FHD @ 30fps
Performance
Charging Time
52min to 100%
Memory | Capacity
6, 8, or 12 GB
4 GB
4 or 6 GB
Memory | Type
LPDDR4x 4266Mbps
LPDDR4X
LPDDR4X
Storage
128 or 256 GB UFS 3.1
64 or 128 GB eMMC 5.1 storage + microSD
64GB UFS 2.1 or 128GB UFS2.2 + up to 512GB microSD
Production
Availability
2021-01-09
Debut
2021-04-27
2021-05-25
2021-01-08
Made In
China
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